Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * checklist.c -- implements the checklist box |
| 3 | * |
| 4 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
| 5 | * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension |
| 6 | * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two |
| 7 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2 |
| 12 | * of the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #include "dialog.h" |
| 25 | |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 26 | static int list_width, check_x, item_x; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
| 28 | /* |
| 29 | * Print list item |
| 30 | */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 31 | static void print_item(WINDOW * win, const char *item, int status, int choice, |
| 32 | int selected) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 34 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 36 | /* Clear 'residue' of last item */ |
| 37 | wattrset(win, menubox_attr); |
| 38 | wmove(win, choice, 0); |
| 39 | for (i = 0; i < list_width; i++) |
| 40 | waddch(win, ' '); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 42 | wmove(win, choice, check_x); |
| 43 | wattrset(win, selected ? check_selected_attr : check_attr); |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 44 | wprintw(win, "(%c)", status ? 'X' : ' '); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 46 | wattrset(win, selected ? tag_selected_attr : tag_attr); |
| 47 | mvwaddch(win, choice, item_x, item[0]); |
| 48 | wattrset(win, selected ? item_selected_attr : item_attr); |
| 49 | waddstr(win, (char *)item + 1); |
| 50 | if (selected) { |
| 51 | wmove(win, choice, check_x + 1); |
| 52 | wrefresh(win); |
| 53 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | /* |
| 57 | * Print the scroll indicators. |
| 58 | */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 59 | static void print_arrows(WINDOW * win, int choice, int item_no, int scroll, |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 60 | int y, int x, int height) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 62 | wmove(win, y, x); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 64 | if (scroll > 0) { |
| 65 | wattrset(win, uarrow_attr); |
| 66 | waddch(win, ACS_UARROW); |
| 67 | waddstr(win, "(-)"); |
| 68 | } else { |
| 69 | wattrset(win, menubox_attr); |
| 70 | waddch(win, ACS_HLINE); |
| 71 | waddch(win, ACS_HLINE); |
| 72 | waddch(win, ACS_HLINE); |
| 73 | waddch(win, ACS_HLINE); |
| 74 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 76 | y = y + height + 1; |
| 77 | wmove(win, y, x); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 79 | if ((height < item_no) && (scroll + choice < item_no - 1)) { |
| 80 | wattrset(win, darrow_attr); |
| 81 | waddch(win, ACS_DARROW); |
| 82 | waddstr(win, "(+)"); |
| 83 | } else { |
| 84 | wattrset(win, menubox_border_attr); |
| 85 | waddch(win, ACS_HLINE); |
| 86 | waddch(win, ACS_HLINE); |
| 87 | waddch(win, ACS_HLINE); |
| 88 | waddch(win, ACS_HLINE); |
| 89 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | /* |
| 93 | * Display the termination buttons |
| 94 | */ |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 95 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 97 | int x = width / 2 - 11; |
| 98 | int y = height - 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 100 | print_button(dialog, "Select", y, x, selected == 0); |
| 101 | print_button(dialog, " Help ", y, x + 14, selected == 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 103 | wmove(dialog, y, x + 1 + 14 * selected); |
| 104 | wrefresh(dialog); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | /* |
| 108 | * Display a dialog box with a list of options that can be turned on or off |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 109 | * in the style of radiolist (only one option turned on at a time). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 111 | int dialog_checklist(const char *title, const char *prompt, int height, |
| 112 | int width, int list_height, int item_no, |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 113 | const char *const *items) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | { |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 115 | int i, x, y, box_x, box_y; |
| 116 | int key = 0, button = 0, choice = 0, scroll = 0, max_choice, *status; |
| 117 | WINDOW *dialog, *list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 119 | /* Allocate space for storing item on/off status */ |
| 120 | if ((status = malloc(sizeof(int) * item_no)) == NULL) { |
| 121 | endwin(); |
| 122 | fprintf(stderr, |
| 123 | "\nCan't allocate memory in dialog_checklist().\n"); |
| 124 | exit(-1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 127 | /* Initializes status */ |
| 128 | for (i = 0; i < item_no; i++) { |
| 129 | status[i] = !strcasecmp(items[i * 3 + 2], "on"); |
| 130 | if ((!choice && status[i]) |
| 131 | || !strcasecmp(items[i * 3 + 2], "selected")) |
| 132 | choice = i + 1; |
| 133 | } |
| 134 | if (choice) |
| 135 | choice--; |
| 136 | |
| 137 | max_choice = MIN(list_height, item_no); |
| 138 | |
| 139 | /* center dialog box on screen */ |
| 140 | x = (COLS - width) / 2; |
| 141 | y = (LINES - height) / 2; |
| 142 | |
| 143 | draw_shadow(stdscr, y, x, height, width); |
| 144 | |
| 145 | dialog = newwin(height, width, y, x); |
| 146 | keypad(dialog, TRUE); |
| 147 | |
| 148 | draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); |
| 149 | wattrset(dialog, border_attr); |
| 150 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
| 151 | for (i = 0; i < width - 2; i++) |
| 152 | waddch(dialog, ACS_HLINE); |
| 153 | wattrset(dialog, dialog_attr); |
| 154 | waddch(dialog, ACS_RTEE); |
| 155 | |
Sam Ravnborg | fa7009d | 2005-11-19 23:38:06 +0100 | [diff] [blame] | 156 | print_title(dialog, title, width); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 157 | |
| 158 | wattrset(dialog, dialog_attr); |
| 159 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
| 160 | |
| 161 | list_width = width - 6; |
| 162 | box_y = height - list_height - 5; |
| 163 | box_x = (width - list_width) / 2 - 1; |
| 164 | |
| 165 | /* create new window for the list */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 166 | list = subwin(dialog, list_height, list_width, y + box_y + 1, |
| 167 | x + box_x + 1); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 168 | |
| 169 | keypad(list, TRUE); |
| 170 | |
| 171 | /* draw a box around the list items */ |
| 172 | draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2, |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 173 | menubox_border_attr, menubox_attr); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 174 | |
| 175 | /* Find length of longest item in order to center checklist */ |
| 176 | check_x = 0; |
| 177 | for (i = 0; i < item_no; i++) |
| 178 | check_x = MAX(check_x, +strlen(items[i * 3 + 1]) + 4); |
| 179 | |
| 180 | check_x = (list_width - check_x) / 2; |
| 181 | item_x = check_x + 4; |
| 182 | |
| 183 | if (choice >= list_height) { |
| 184 | scroll = choice - list_height + 1; |
| 185 | choice -= scroll; |
| 186 | } |
| 187 | |
| 188 | /* Print the list */ |
| 189 | for (i = 0; i < max_choice; i++) { |
| 190 | print_item(list, items[(scroll + i) * 3 + 1], |
| 191 | status[i + scroll], i, i == choice); |
| 192 | } |
| 193 | |
| 194 | print_arrows(dialog, choice, item_no, scroll, |
| 195 | box_y, box_x + check_x + 5, list_height); |
| 196 | |
| 197 | print_buttons(dialog, height, width, 0); |
| 198 | |
| 199 | wnoutrefresh(list); |
| 200 | wnoutrefresh(dialog); |
| 201 | doupdate(); |
| 202 | |
| 203 | while (key != ESC) { |
| 204 | key = wgetch(dialog); |
| 205 | |
| 206 | for (i = 0; i < max_choice; i++) |
| 207 | if (toupper(key) == |
| 208 | toupper(items[(scroll + i) * 3 + 1][0])) |
| 209 | break; |
| 210 | |
| 211 | if (i < max_choice || key == KEY_UP || key == KEY_DOWN || |
| 212 | key == '+' || key == '-') { |
| 213 | if (key == KEY_UP || key == '-') { |
| 214 | if (!choice) { |
| 215 | if (!scroll) |
| 216 | continue; |
| 217 | /* Scroll list down */ |
| 218 | if (list_height > 1) { |
| 219 | /* De-highlight current first item */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 220 | print_item(list, items[scroll * 3 + 1], |
| 221 | status[scroll], 0, FALSE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 222 | scrollok(list, TRUE); |
| 223 | wscrl(list, -1); |
| 224 | scrollok(list, FALSE); |
| 225 | } |
| 226 | scroll--; |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 227 | print_item(list, items[scroll * 3 + 1], status[scroll], 0, TRUE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 228 | wnoutrefresh(list); |
| 229 | |
| 230 | print_arrows(dialog, choice, item_no, |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 231 | scroll, box_y, box_x + check_x + 5, list_height); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 232 | |
| 233 | wrefresh(dialog); |
| 234 | |
| 235 | continue; /* wait for another key press */ |
| 236 | } else |
| 237 | i = choice - 1; |
| 238 | } else if (key == KEY_DOWN || key == '+') { |
| 239 | if (choice == max_choice - 1) { |
| 240 | if (scroll + choice >= item_no - 1) |
| 241 | continue; |
| 242 | /* Scroll list up */ |
| 243 | if (list_height > 1) { |
| 244 | /* De-highlight current last item before scrolling up */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 245 | print_item(list, items[(scroll + max_choice - 1) * 3 + 1], |
| 246 | status[scroll + max_choice - 1], |
| 247 | max_choice - 1, FALSE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 248 | scrollok(list, TRUE); |
| 249 | wscrl(list, 1); |
| 250 | scrollok(list, FALSE); |
| 251 | } |
| 252 | scroll++; |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 253 | print_item(list, items[(scroll + max_choice - 1) * 3 + 1], |
| 254 | status[scroll + max_choice - 1], max_choice - 1, TRUE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 255 | wnoutrefresh(list); |
| 256 | |
| 257 | print_arrows(dialog, choice, item_no, |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 258 | scroll, box_y, box_x + check_x + 5, list_height); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 259 | |
| 260 | wrefresh(dialog); |
| 261 | |
| 262 | continue; /* wait for another key press */ |
| 263 | } else |
| 264 | i = choice + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | } |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 266 | if (i != choice) { |
| 267 | /* De-highlight current item */ |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 268 | print_item(list, items[(scroll + choice) * 3 + 1], |
| 269 | status[scroll + choice], choice, FALSE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 270 | /* Highlight new item */ |
| 271 | choice = i; |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 272 | print_item(list, items[(scroll + choice) * 3 + 1], |
| 273 | status[scroll + choice], choice, TRUE); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 274 | wnoutrefresh(list); |
| 275 | wrefresh(dialog); |
| 276 | } |
| 277 | continue; /* wait for another key press */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | } |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 279 | switch (key) { |
| 280 | case 'H': |
| 281 | case 'h': |
| 282 | case '?': |
| 283 | fprintf(stderr, "%s", items[(scroll + choice) * 3]); |
| 284 | delwin(dialog); |
| 285 | free(status); |
| 286 | return 1; |
| 287 | case TAB: |
| 288 | case KEY_LEFT: |
| 289 | case KEY_RIGHT: |
| 290 | button = ((key == KEY_LEFT ? --button : ++button) < 0) |
| 291 | ? 1 : (button > 1 ? 0 : button); |
| 292 | |
| 293 | print_buttons(dialog, height, width, button); |
| 294 | wrefresh(dialog); |
| 295 | break; |
| 296 | case 'S': |
| 297 | case 's': |
| 298 | case ' ': |
| 299 | case '\n': |
| 300 | if (!button) { |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 301 | if (!status[scroll + choice]) { |
| 302 | for (i = 0; i < item_no; i++) |
| 303 | status[i] = 0; |
| 304 | status[scroll + choice] = 1; |
| 305 | for (i = 0; i < max_choice; i++) |
| 306 | print_item(list, items[(scroll + i) * 3 + 1], |
| 307 | status[scroll + i], i, i == choice); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 308 | } |
| 309 | wnoutrefresh(list); |
| 310 | wrefresh(dialog); |
| 311 | |
Petr Baudis | 00213b1 | 2005-12-22 04:44:04 +0100 | [diff] [blame] | 312 | for (i = 0; i < item_no; i++) |
| 313 | if (status[i]) |
| 314 | fprintf(stderr, "%s", items[i * 3]); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 315 | } else |
Sam Ravnborg | dec69da | 2005-11-19 21:56:20 +0100 | [diff] [blame] | 316 | fprintf(stderr, "%s", items[(scroll + choice) * 3]); |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 317 | delwin(dialog); |
| 318 | free(status); |
| 319 | return button; |
| 320 | case 'X': |
| 321 | case 'x': |
| 322 | key = ESC; |
| 323 | case ESC: |
| 324 | break; |
| 325 | } |
| 326 | |
| 327 | /* Now, update everything... */ |
| 328 | doupdate(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Sam Ravnborg | b1c5f1c | 2005-11-19 19:13:34 +0100 | [diff] [blame] | 331 | delwin(dialog); |
| 332 | free(status); |
| 333 | return -1; /* ESC pressed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | } |